If I'm doing reversed out type in a black box, but the black box is done in CMYK as a rich black, what do I need to do to the ID file to spread the C,M, &Y so there is absolutely no whisker of these colors along the edge of the type. Using CS5.5.

If you are using InDesign's built in trapping— via the Print dialog when you print separations—it happens by default. The amount of spread is determined by the page's trap preset's Trap Width Black setting, which by default is 2x the normal width: